private void Save(ISession session)
{
Assert.IsFalse(IsSaved);
BatchProcessor batchProcessor = new BatchProcessor();
BackupRepository daoBackup = new BackupRepository(session);
BackupPlanFileRepository daoBackupPlanFile = new BackupPlanFileRepository(session);
BackupedFileRepository daoBackupedFile = new BackupedFileRepository(session);
BackupPlanPathNodeRepository daoBackupPlanPathNode = new BackupPlanPathNodeRepository(session);
#if false
var FilesToTrack = SuppliedFiles.Union(ChangeSet.DeletedFiles);
var FilesToInsertOrUpdate =
from f in FilesToTrack
where
// Keep it so we'll later add or update a `BackupedFile`.
((f.LastStatus == Models.BackupFileStatus.ADDED || f.LastStatus == Models.BackupFileStatus.MODIFIED))
// Keep it if `LastStatus` is different from `PreviousLastStatus`.
|| ((f.LastStatus == Models.BackupFileStatus.REMOVED || f.LastStatus == Models.BackupFileStatus.DELETED) && (f.LastStatus != f.PreviousLastStatus))
// Skip all UNCHANGED files.
select f;
#else
var FilesToTrack = SuppliedFiles;
var FilesToInsertOrUpdate =
from f in FilesToTrack
where
// Keep it so we'll later add or update a `BackupedFile`.
((f.LastStatus == Models.BackupFileStatus.ADDED || f.LastStatus == Models.BackupFileStatus.MODIFIED))
// Skip all UNCHANGED/DELETED/REMOVED files.
select f;
#endif
BlockPerfStats stats = new BlockPerfStats();
using (ITransaction tx = session.BeginTransaction())
{
try
{
// ------------------------------------------------------------------------------------
stats.Begin("STEP 1");
BackupPlanPathNodeCreator pathNodeCreator = new BackupPlanPathNodeCreator(daoBackupPlanPathNode, tx);
// 1 - Split path into its components and INSERT new path nodes if they don't exist yet.
foreach (Models.BackupPlanFile entry in FilesToInsertOrUpdate)
{
// Throw if the operation was canceled.
CancellationToken.ThrowIfCancellationRequested();
try
{
entry.PathNode = pathNodeCreator.CreateOrUpdatePathNodes(Backup.BackupPlan.StorageAccount, entry);
}
catch (Exception ex)
{
string message = string.Format("BUG: Failed to create/update {0} => {1}",
typeof(Models.BackupPlanPathNode).Name,
CustomJsonSerializer.SerializeObject(entry, 1));
Results.OnError(this, message);
logger.Log(LogLevel.Error, ex, message);
throw;
}
batchProcessor.ProcessBatch(session);
}
batchProcessor.ProcessBatch(session, true);
stats.End();
// ------------------------------------------------------------------------------------
stats.Begin("STEP 2");
// 2 - Insert/Update `BackupPlanFile`s as necessary.
foreach (Models.BackupPlanFile entry in FilesToInsertOrUpdate)
{
// Throw if the operation was canceled.
CancellationToken.ThrowIfCancellationRequested();
// IMPORTANT: It's important that we guarantee the referenced `BackupPlanFile` has a valid `Id`
// before we reference it elsewhere, otherwise NHibernate won't have a valid value to put on
// the `backup_plan_file_id` column.
try
{
daoBackupPlanFile.InsertOrUpdate(tx, entry); // Guarantee it's saved
}
catch (Exception ex)
{
string message = string.Format("BUG: Failed to insert/update {0} => {1}",
typeof(Models.BackupPlanFile).Name,
CustomJsonSerializer.SerializeObject(entry, 1));
Results.OnError(this, message);
logger.Log(LogLevel.Error, ex, message);
logger.Error("Dump of failed object: {0}", entry.DumpMe());
throw;
}
batchProcessor.ProcessBatch(session);
}
batchProcessor.ProcessBatch(session, true);
stats.End();
// ------------------------------------------------------------------------------------
stats.Begin("STEP 3");
// 3 - Insert/Update `BackupedFile`s as necessary and add them to the `Backup`.
//List<Models.BackupedFile> backupedFiles = new List<Models.BackupedFile>(FilesToInsertOrUpdate.Count());
foreach (Models.BackupPlanFile entry in FilesToInsertOrUpdate)
{
// Throw if the operation was canceled.
CancellationToken.ThrowIfCancellationRequested();
Models.BackupedFile backupedFile = daoBackupedFile.GetByBackupAndPath(Backup, entry.Path);
if (backupedFile == null) // If we're resuming, this should already exist.
{
// Create `BackupedFile`.
backupedFile = new Models.BackupedFile(Backup, entry);
}
backupedFile.FileSize = entry.LastSize;
backupedFile.FileStatus = entry.LastStatus;
backupedFile.FileLastWrittenAt = entry.LastWrittenAt;
backupedFile.FileLastChecksum = entry.LastChecksum;
switch (entry.LastStatus)
{
default:
backupedFile.TransferStatus = default(TransferStatus);
break;
case Models.BackupFileStatus.REMOVED:
case Models.BackupFileStatus.DELETED:
backupedFile.TransferStatus = TransferStatus.COMPLETED;
break;
}
backupedFile.UpdatedAt = DateTime.UtcNow;
try
{
daoBackupedFile.InsertOrUpdate(tx, backupedFile);
}
catch (Exception ex)
{
logger.Log(LogLevel.Error, ex, "BUG: Failed to insert/update {0} => {1}",
typeof(Models.BackupedFile).Name,
CustomJsonSerializer.SerializeObject(backupedFile, 1));
throw;
}
//backupedFiles.Add(backupedFile);
batchProcessor.ProcessBatch(session);
}
batchProcessor.ProcessBatch(session, true);
stats.End();
// ------------------------------------------------------------------------------------
stats.Begin("STEP 4");
// 4 - Update all `BackupPlanFile`s that already exist for the backup plan associated with this backup operation.
{
var AllFilesFromPlanThatWerentUpdatedYet = AllFilesFromPlan.Values.Except(FilesToInsertOrUpdate);
foreach (Models.BackupPlanFile file in AllFilesFromPlanThatWerentUpdatedYet)
{
// Throw if the operation was canceled.
CancellationToken.ThrowIfCancellationRequested();
//Console.WriteLine("2: {0}", file.Path);
try
{
daoBackupPlanFile.Update(tx, file);
}
catch (Exception ex)
{
string message = string.Format("BUG: Failed to update {0} => {1} ",
typeof(Models.BackupPlanFile).Name,
CustomJsonSerializer.SerializeObject(file, 1));
Results.OnError(this, message);
logger.Log(LogLevel.Error, ex, message);
throw;
}
batchProcessor.ProcessBatch(session);
}
}
batchProcessor.ProcessBatch(session, true);
stats.End();
// ------------------------------------------------------------------------------------
stats.Begin("STEP 5");
// 5 - Insert/Update `Backup` and its `BackupedFile`s into the database, also saving
// the `BackupPlanFile`s instances that may have been changed by step 2.
{
//foreach (var bf in backupedFiles)
//{
// // Throw if the operation was canceled.
// CancellationToken.ThrowIfCancellationRequested();
//
// Backup.Files.Add(bf);
//
// ProcessBatch(session);
//}
try
{
daoBackup.Update(tx, Backup);
}
catch (Exception ex)
{
string message = string.Format("BUG: Failed to update {0} => {1}",
typeof(Models.Backup).Name,
CustomJsonSerializer.SerializeObject(Backup, 1));
Results.OnError(this, message);
logger.Log(LogLevel.Error, ex, message);
throw;
}
}
batchProcessor.ProcessBatch(session, true);
stats.End();
// ------------------------------------------------------------------------------------
tx.Commit();
}
catch (OperationCanceledException)
{
string message = "Operation cancelled";
Results.OnError(this, message);
logger.Warn(message);
tx.Rollback(); // Rollback the transaction
throw;
}
catch (Exception ex)
{
string message = string.Format("Caught Exception: {0}", ex.Message);
Results.OnError(this, message);
logger.Log(LogLevel.Error, ex, message);
tx.Rollback(); // Rollback the transaction
throw;
}
finally
{
// ...
}
}
IsSaved = true;
// 6 - Create versioned files and remove files that won't belong to this backup.
TransferSet.Files = GetFilesToTransfer(Backup, SuppliedFiles);
// Test to see if things are okay!
{
var transferCount = TransferSet.Files.Count();
var filesCount = ChangeSet.AddedFiles.Count() + ChangeSet.ModifiedFiles.Count();
Assert.IsTrue(transferCount == filesCount, "TransferSet.Files must be equal (ChangeSet.AddedFiles + ChangeSet.ModifiedFiles)");
}
}
// Summary:
// Saves all instances from RemoteObjects list to the database.
// Also removes them from RemoteObjects list to free memory.
private void Save(CancellationToken CancellationToken)
{
ISession session = NHibernateHelper.GetSession();
BatchProcessor batchProcessor = new BatchProcessor(250);
StorageAccountRepository daoStorageAccount = new StorageAccountRepository(session);
BackupPlanFileRepository daoBackupPlanFile = new BackupPlanFileRepository(session);
BackupPlanPathNodeRepository daoBackupPlanPathNode = new BackupPlanPathNodeRepository(session);
BackupedFileRepository daoBackupedFile = new BackupedFileRepository(session);
BlockPerfStats stats = new BlockPerfStats();
using (BatchTransaction tx = batchProcessor.BeginTransaction(session))
{
try
{
// ------------------------------------------------------------------------------------
Models.StorageAccount account = daoStorageAccount.Get(Synchronization.StorageAccount.Id);
// ------------------------------------------------------------------------------------
stats.Begin("STEP 1");
BackupPlanPathNodeCreator pathNodeCreator = new BackupPlanPathNodeCreator(daoBackupPlanPathNode, tx);
// Report save progress
ReportSaveProgress(SyncAgent.Results.Stats.SavedFileCount, true);
// Saving loop
for (int i = RemoteObjects.Count - 1; i >= 0; i--)
{
ListingObject obj = RemoteObjects[i]; // Get instance of object.
//RemoteObjects[i] = null;
RemoteObjects.RemoveAt(i); // Remove to free memory. RemoveAt(int) is O(N).
// Throw if the operation was canceled.
CancellationToken.ThrowIfCancellationRequested();
Models.EntryType type;
string path = string.Empty;
string versionString = string.Empty;
try
{
// Parse obj.Key into its relevant parts.
bool ok = ParseS3Key(obj.Key, out type, out path, out versionString);
}
catch (Exception ex)
{
if (ex is ArgumentException || ex is IndexOutOfRangeException)
{
// Report error.
logger.Warn("Failed to parse S3 key: {0} -- Skipping.", obj.Key);
//logger.Log(LogLevel.Warn, ex, "Failed to parse S3 key: {0}", obj.Key);
//SyncAgent.Results.Stats.FailedSavedFileCount += 1;
// Report save progress
//ReportSaveProgress(SyncAgent.Results.Stats.SavedFileCount);
continue; // Skip this file.
}
throw;
}
path = StringUtils.NormalizeUsingPreferredForm(path);
DateTime lastWrittenAt = DateTime.ParseExact(versionString, Models.BackupedFile.VersionFormat, CultureInfo.InvariantCulture);
// Create/Update BackupPlanFile, but do not SAVE it.
Models.BackupPlanFile entry = daoBackupPlanFile.GetByStorageAccountAndPath(account, path);
Models.BackupedFile version = null;
if (entry == null)
{
// Create `BackupPlanFile`.
entry = new Models.BackupPlanFile();
entry.BackupPlan = null;
entry.StorageAccountType = account.Type;
entry.StorageAccount = account;
entry.Path = path;
entry.LastSize = obj.Size;
entry.LastWrittenAt = lastWrittenAt;
//entry.LastChecksum = ;
entry.LastStatus = Models.BackupFileStatus.UNCHANGED;
entry.CreatedAt = DateTime.UtcNow;
// Create `BackupedFile`.
version = new Models.BackupedFile(null, entry, Synchronization);
version.StorageAccountType = account.Type;
version.StorageAccount = account;
version.FileLastWrittenAt = lastWrittenAt;
version.FileLastChecksum = entry.LastChecksum;
version.FileSize = entry.LastSize;
version.FileStatus = Models.BackupFileStatus.MODIFIED;
version.TransferStatus = TransferStatus.COMPLETED;
version.UpdatedAt = DateTime.UtcNow;
entry.Versions.Add(version);
//daoBackupedFile.Insert(tx, version);
}
else
{
// Update `BackupPlanFile`.
entry.LastSize = obj.Size;
entry.LastWrittenAt = lastWrittenAt;
//entry.LastChecksum =
//entry.LastStatus = Models.BackupFileStatus.MODIFIED;
entry.UpdatedAt = DateTime.UtcNow;
IList <Models.BackupedFile> versions = null;
try
{
versions = daoBackupedFile.GetCompletedByStorageAccountAndPath(account, path, versionString);
}
catch (FormatException)
{
// Report error.
logger.Warn("Failed to parse versionString: {0} -- Skipping.", versionString);
//SyncAgent.Results.Stats.FailedSavedFileCount += 1;
continue; // TODO(jweyrich): Should we abort?
}
// Check whether our database already contains this exact file + version.
if (versions == null || (versions != null && versions.Count == 0))
{
// Create `BackupedFile`.
version = new Models.BackupedFile(null, entry, Synchronization);
version.StorageAccountType = account.Type;
version.StorageAccount = account;
version.FileLastWrittenAt = entry.LastWrittenAt;
version.FileLastChecksum = entry.LastChecksum;
version.FileSize = entry.LastSize;
version.FileStatus = Models.BackupFileStatus.MODIFIED;
version.TransferStatus = TransferStatus.COMPLETED;
version.UpdatedAt = DateTime.UtcNow;
entry.Versions.Add(version);
//daoBackupedFile.Insert(tx, version);
}
else
{
// Update `BackupedFile`.
version = versions.First();
version.FileLastWrittenAt = entry.LastWrittenAt;
version.FileLastChecksum = entry.LastChecksum;
version.FileSize = entry.LastSize;
version.UpdatedAt = DateTime.UtcNow;
//daoBackupedFile.Update(tx, version);
}
}
try
{
// Create path nodes and INSERT them, if they don't exist yet.
entry.PathNode = pathNodeCreator.CreateOrUpdatePathNodes(account, entry);
// Create or update `BackupPlanFile`.
daoBackupPlanFile.InsertOrUpdate(tx, entry);
}
catch (Exception ex)
{
logger.Log(LogLevel.Error, ex, "BUG: Failed to insert/update {0} => {1}",
typeof(Models.BackupPlanFile).Name,
CustomJsonSerializer.SerializeObject(entry, 1));
logger.Error("Dump of failed object: {0}", entry.DumpMe());
throw;
}
bool didCommit = batchProcessor.ProcessBatch(tx);
SyncAgent.Results.Stats.SavedFileCount += 1;
// Report save progress
ReportSaveProgress(SyncAgent.Results.Stats.SavedFileCount);
}
batchProcessor.ProcessBatch(tx, true);
// Report save progress
ReportSaveProgress(SyncAgent.Results.Stats.SavedFileCount, true);
stats.End();
// ------------------------------------------------------------------------------------
tx.Commit();
}
catch (OperationCanceledException)
{
tx.Rollback(); // Rollback the transaction
throw;
}
catch (Exception ex)
{
logger.Log(LogLevel.Error, ex, "Caught exception");
tx.Rollback(); // Rollback the transaction
throw;
}
finally
{
//session.Close();
if (session.IsConnected)
{
session.Disconnect();
}
}
}
}